THOMSON ViBE VS7000, User Manual

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Chapter 3 ’Web Browser Interface’ — Workflow Library Content Parameters
ViBE VS7000 125
User Manual
For this item, you must set the following parameters:
„
Bitrate : enter the bit rate value (without encapsulation overhead), in
bits per second.
„ Profile : select from the drop-down list the profile you wish to apply:
™ Main : I, P and B pictures are encoded.
™ Simple : only I and P pictures are encoded.
„ Level : select from the drop-down list the level you wish to apply:
™ Low : the maximum horizontal resolution is 352, the maximum
vertical resolution is 288, and the maximum bit rate in Main
profile is 4 Mbps.
™
Main : the maximum horizontal resolution is 720, the maximum
vertical resolution is 576, and the maximum bit rate in Main
profile is 15 Mbps.
™ High1440 : the maximum horizontal resolution is 1440, the
maximum vertical resolution is 1152, and the maximum bit rate
in Main profile is 20 Mbps.
™ High : the maximum horizontal resolution is 1920, the maximum
vertical resolution is 1152, and the maximum bit rate in Main
profile is 20 Mbps.
„ Interlace support : if set to true , interlaced streams will be handled.
„ Display Aspect Ratio : leave to Auto to keep the source display aspect
ratio. If you want to use another ratio, enter it manually in the editable
list.
„ I period : maximum size of the GOP.
„ Minimum I period : minimum size of the GOP.
„ P period :
™ 1 if the GOP contains no B frame
™ 2 if a B frame is present between each P frame
™ 3 if two B frames are present between each P frame
™ etc.
„
Closed GOP period : set to 0 for no periodicity, 1 for every GOP, 2 for
every second GOP, etc.
„ Decoder delay : this parameter is associated to the decoder buffer.
Increasing this delay improves the quality. However, the zapping time
is longer.
MPEG-1 Layer 2 Encoder
The MPEG-1 layer 2 encoder item lets you encode audio in MPEG-1
layer 2 format.